Home / 10,892.07-15,034.23-7,115.81

Finding the Fourth Proportional to 10,892.07, 15,034.23 and 7,115.81

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Solution

The fourth proportional to 10,892.07, 15,034.23 and 7,115.81 is: 9,821.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,892.07 : 15,034.23 = 7,115.81 : x
  2. Step 2: Convert to fraction form
    10,892.07/15,034.23 = 7,115.81/x
  3. Step 3: Cross multiply
    10,892.07x = 15,034.23 × 7,115.81
  4. Step 4: Simplify right side
    10,892.07x = 106,980,649.01
  5. Step 5: Solve for x
    x = 106,980,649.01/10,892.07
  6. Step 6: Final answer
    x = 9,821.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.